2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
4 * SPDX-License-Identifier: GPL-2.0
15 #include <sandboxfs.h>
16 #include <ubifs_uboot.h>
19 #include <linux/math64.h>
21 DECLARE_GLOBAL_DATA_PTR;
23 static struct blk_desc *fs_dev_desc;
24 static disk_partition_t fs_partition;
25 static int fs_type = FS_TYPE_ANY;
27 static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc,
28 disk_partition_t *fs_partition)
30 printf("** Unrecognized filesystem type **\n");
34 static inline int fs_ls_unsupported(const char *dirname)
39 static inline int fs_exists_unsupported(const char *filename)
44 static inline int fs_size_unsupported(const char *filename, loff_t *size)
49 static inline int fs_read_unsupported(const char *filename, void *buf,
50 loff_t offset, loff_t len,
56 static inline int fs_write_unsupported(const char *filename, void *buf,
57 loff_t offset, loff_t len,
63 static inline void fs_close_unsupported(void)
67 static inline int fs_uuid_unsupported(char *uuid_str)
76 * Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
77 * should be false in most cases. For "virtual" filesystems which
78 * aren't based on a U-Boot block device (e.g. sandbox), this can be
79 * set to true. This should also be true for the dumm entry at the end
80 * of fstypes[], since that is essentially a "virtual" (non-existent)
83 bool null_dev_desc_ok;
84 int (*probe)(struct blk_desc *fs_dev_desc,
85 disk_partition_t *fs_partition);
86 int (*ls)(const char *dirname);
87 int (*exists)(const char *filename);
88 int (*size)(const char *filename, loff_t *size);
89 int (*read)(const char *filename, void *buf, loff_t offset,
90 loff_t len, loff_t *actread);
91 int (*write)(const char *filename, void *buf, loff_t offset,
92 loff_t len, loff_t *actwrite);
94 int (*uuid)(char *uuid_str);
97 static struct fstype_info fstypes[] = {
100 .fstype = FS_TYPE_FAT,
102 .null_dev_desc_ok = false,
103 .probe = fat_set_blk_dev,
106 .exists = fat_exists,
108 .read = fat_read_file,
109 #ifdef CONFIG_FAT_WRITE
110 .write = file_fat_write,
112 .write = fs_write_unsupported,
114 .uuid = fs_uuid_unsupported,
117 #ifdef CONFIG_FS_EXT4
119 .fstype = FS_TYPE_EXT,
121 .null_dev_desc_ok = false,
122 .probe = ext4fs_probe,
123 .close = ext4fs_close,
125 .exists = ext4fs_exists,
127 .read = ext4_read_file,
128 #ifdef CONFIG_CMD_EXT4_WRITE
129 .write = ext4_write_file,
131 .write = fs_write_unsupported,
136 #ifdef CONFIG_SANDBOX
138 .fstype = FS_TYPE_SANDBOX,
140 .null_dev_desc_ok = true,
141 .probe = sandbox_fs_set_blk_dev,
142 .close = sandbox_fs_close,
144 .exists = sandbox_fs_exists,
145 .size = sandbox_fs_size,
146 .read = fs_read_sandbox,
147 .write = fs_write_sandbox,
148 .uuid = fs_uuid_unsupported,
151 #ifdef CONFIG_CMD_UBIFS
153 .fstype = FS_TYPE_UBIFS,
155 .null_dev_desc_ok = true,
156 .probe = ubifs_set_blk_dev,
157 .close = ubifs_close,
159 .exists = ubifs_exists,
162 .write = fs_write_unsupported,
163 .uuid = fs_uuid_unsupported,
167 .fstype = FS_TYPE_ANY,
168 .name = "unsupported",
169 .null_dev_desc_ok = true,
170 .probe = fs_probe_unsupported,
171 .close = fs_close_unsupported,
172 .ls = fs_ls_unsupported,
173 .exists = fs_exists_unsupported,
174 .size = fs_size_unsupported,
175 .read = fs_read_unsupported,
176 .write = fs_write_unsupported,
177 .uuid = fs_uuid_unsupported,
181 static struct fstype_info *fs_get_info(int fstype)
183 struct fstype_info *info;
186 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
187 if (fstype == info->fstype)
191 /* Return the 'unsupported' sentinel */
195 int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
197 struct fstype_info *info;
199 #ifdef CONFIG_NEEDS_MANUAL_RELOC
200 static int relocated;
203 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
205 info->name += gd->reloc_off;
206 info->probe += gd->reloc_off;
207 info->close += gd->reloc_off;
208 info->ls += gd->reloc_off;
209 info->read += gd->reloc_off;
210 info->write += gd->reloc_off;
216 part = blk_get_device_part_str(ifname, dev_part_str, &fs_dev_desc,
221 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
222 if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
223 fstype != info->fstype)
226 if (!fs_dev_desc && !info->null_dev_desc_ok)
229 if (!info->probe(fs_dev_desc, &fs_partition)) {
230 fs_type = info->fstype;
238 static void fs_close(void)
240 struct fstype_info *info = fs_get_info(fs_type);
244 fs_type = FS_TYPE_ANY;
247 int fs_uuid(char *uuid_str)
249 struct fstype_info *info = fs_get_info(fs_type);
251 return info->uuid(uuid_str);
254 int fs_ls(const char *dirname)
258 struct fstype_info *info = fs_get_info(fs_type);
260 ret = info->ls(dirname);
262 fs_type = FS_TYPE_ANY;
268 int fs_exists(const char *filename)
272 struct fstype_info *info = fs_get_info(fs_type);
274 ret = info->exists(filename);
281 int fs_size(const char *filename, loff_t *size)
285 struct fstype_info *info = fs_get_info(fs_type);
287 ret = info->size(filename, size);
294 int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
297 struct fstype_info *info = fs_get_info(fs_type);
302 * We don't actually know how many bytes are being read, since len==0
303 * means read the whole file.
305 buf = map_sysmem(addr, len);
306 ret = info->read(filename, buf, offset, len, actread);
309 /* If we requested a specific number of bytes, check we got it */
310 if (ret == 0 && len && *actread != len)
311 printf("** %s shorter than offset + len **\n", filename);
317 int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
320 struct fstype_info *info = fs_get_info(fs_type);
324 buf = map_sysmem(addr, len);
325 ret = info->write(filename, buf, offset, len, actwrite);
328 if (ret < 0 && len != *actwrite) {
329 printf("** Unable to write file %s **\n", filename);
337 int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
343 return CMD_RET_USAGE;
345 if (fs_set_blk_dev(argv[1], argv[2], fstype))
348 if (fs_size(argv[3], &size) < 0)
349 return CMD_RET_FAILURE;
351 setenv_hex("filesize", size);
356 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
360 const char *addr_str;
361 const char *filename;
370 return CMD_RET_USAGE;
372 return CMD_RET_USAGE;
374 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
378 addr = simple_strtoul(argv[3], &ep, 16);
379 if (ep == argv[3] || *ep != '\0')
380 return CMD_RET_USAGE;
382 addr_str = getenv("loadaddr");
383 if (addr_str != NULL)
384 addr = simple_strtoul(addr_str, NULL, 16);
386 addr = CONFIG_SYS_LOAD_ADDR;
391 filename = getenv("bootfile");
393 puts("** No boot file defined **\n");
398 bytes = simple_strtoul(argv[5], NULL, 16);
402 pos = simple_strtoul(argv[6], NULL, 16);
407 ret = fs_read(filename, addr, pos, bytes, &len_read);
408 time = get_timer(time);
412 printf("%llu bytes read in %lu ms", len_read, time);
415 print_size(div_u64(len_read, time) * 1000, "/s");
420 setenv_hex("fileaddr", addr);
421 setenv_hex("filesize", len_read);
426 int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
430 return CMD_RET_USAGE;
432 return CMD_RET_USAGE;
434 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
437 if (fs_ls(argc >= 4 ? argv[3] : "/"))
443 int file_exists(const char *dev_type, const char *dev_part, const char *file,
446 if (fs_set_blk_dev(dev_type, dev_part, fstype))
449 return fs_exists(file);
452 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
456 const char *filename;
463 if (argc < 6 || argc > 7)
464 return CMD_RET_USAGE;
466 if (fs_set_blk_dev(argv[1], argv[2], fstype))
469 addr = simple_strtoul(argv[3], NULL, 16);
471 bytes = simple_strtoul(argv[5], NULL, 16);
473 pos = simple_strtoul(argv[6], NULL, 16);
478 ret = fs_write(filename, addr, pos, bytes, &len);
479 time = get_timer(time);
483 printf("%llu bytes written in %lu ms", len, time);
486 print_size(div_u64(len, time) * 1000, "/s");
494 int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
499 memset(uuid, 0, sizeof(uuid));
501 if (argc < 3 || argc > 4)
502 return CMD_RET_USAGE;
504 if (fs_set_blk_dev(argv[1], argv[2], fstype))
509 return CMD_RET_FAILURE;
512 setenv(argv[3], uuid);
514 printf("%s\n", uuid);
516 return CMD_RET_SUCCESS;
519 int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
521 struct fstype_info *info;
523 if (argc < 3 || argc > 4)
524 return CMD_RET_USAGE;
526 if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
529 info = fs_get_info(fs_type);
532 setenv(argv[3], info->name);
534 printf("%s\n", info->name);
536 return CMD_RET_SUCCESS;